My brother helped me catch these, we let them loose on the Polaroids in the basement. Polaroids are positives. This is a record of lightning bug dance-steps. Look closely and you can see the shadows of their legs.

Polaroids are removed from their case in a darkroom, laid flat and exposed as a single, light sensitive array. After they are exposed, they are reinserted into the pack and -with the lens now covered- can be processed by simply pressing the camera's shutter and processing the film by ejecting it from the camera.